title: Simultaneous occurrence of a rectal carcinoma and a diffuse well differentiated papillary mesothelioma of the peritoneum.
abstract: Diffuse well differentiated papillary mesothelioma is a rare neoplasms of the peritoneal cavity which has generally been regarded as a tumor with low-grade malignant potential [1-4]. The well differentiated papillary mesotheliomas reported in recent literature are considered as border line lesions with a long term benign clinical course. There are however, only few studies with small numbers of diffuse well differentiated mesotheliomas [1, 2, 5, 6]. The synchronous appearance of such a lesion with a second malignancy therefore is a very rare event. Such a clinical scenario would suggest diffuse tumor spread to the peritoneum resulting in an inappropriate palliative procedure alone-being undertaken. To our knowledge this is the first report of the simultaneous occurrence of a rectal carcinoma in combination with a diffuse well differentiated papillary mesothelioma of the peritoneum.
authors.affiliation: Surgical Department, Hospital of Barmherzige Brüder, St. Veit an der Glan, Austria.
authors.forename: G R
authors.initials: GR
authors.lastname: Jatzko
authors.forename: J
authors.initials: J
authors.lastname: Jester
mesh_terms: D000230:Adenocarcinoma / Q000150:complications* / Q000473:pathology; D005260:Female; D006801:Humans; D008654:Mesothelioma / Q000150:complications* / Q000473:pathology; D008875:Middle Aged; D009378:Neoplasms, Multiple Primary / Q000473:pathology*; D010534:Peritoneal Neoplasms / Q000150:complications* / Q000473:pathology; D012004:Rectal Neoplasms / Q000150:complications* / Q000473:pathology